Otostigmus striolatus Verhoeff, 1937

Lewis, John G. E., 2014, A review of the orientalis group of the Otostigmus subgenus Otostigmus Porat, 1876 (Chilopoda: Scolopendromorpha: Scolopendridae), Zootaxa 3889 (3), pp. 388-413 : 407

publication ID

https://doi.org/ 10.11646/zootaxa.3889.3.3

publication LSID

lsid:zoobank.org:pub:F5294390-C1C6-4011-89F7-76BBCE641919

DOI

https://doi.org/10.5281/zenodo.5661035

persistent identifier

https://treatment.plazi.org/id/C95387E9-4067-F14F-B8D7-080BC391F84C

treatment provided by

Plazi

scientific name

Otostigmus striolatus Verhoeff, 1937
status

 

Otostigmus striolatus Verhoeff, 1937 View in CoL

( Figs 55–62 View FIGURES 55 – 62 )

O. (Otostigmus) striolatus Verhoeff, 1937 View in CoL , 214, Pl. 13, Figs 10, 12. Malacca [ Melaka] Malaysia O. striolatus: Verhoeff, 1942 View in CoL , 185 (in key).

Diagnosis. Length 25–43 mm. Antennal articles 21 or 22, the basal 2.25–2.5 glabrous dorsally. Forcipular coxosternal teeth 6+6 to 6+8. Tergites with complete paramedian sutures from 8, marginate from 10, 11 or 12, with weak lateral corrugations and numerous very short fine ridges of variable length. Sternites without paramedian sutures, with numerous very short longitudinal grooves from 11–20. Coxopleural process with three or four apical and one lateral spine. Legs 1–18 with two tarsal spurs. Ultimate leg prefemora with 9–13 spines. No corner spine.

Material examined. ZMB. 1 specimen in ethanol, Malacca, Syntypus 2105, ZMB 13363.

ZSM. 2 slides each labelled Otostigmus striolatus Verh. Pahang 15–1600m. Malacca. A20030598 with forcipules and trunk segments 1–3, and 18–21 and two detached ultimate legs. A20030599 with head and mouth parts.

Description of ZMB specimen. (Verhoeff’s (1937) data in parentheses). Length approximately 25 (43) mm. Antennae with 22 (21–21) articles, the basal 2.25 (2½) glabrous. Forcipular coxosternal tooth-plates with 6+6 low teeth ( Fig. 55 View FIGURES 55 – 62 ) not apparently due to wear (Verhoeff’s Abb. 7 shows 8+7). Forcipular trochanteroprefemoral process with two low denticles.

Tergites with complete paramedian sutures from 8, marginate from about 10 (11 or 12), weak lateral corrugations from 9, a low median keel from 12–19. With numerous very short fine ridges of variable length ( Fig. 56 View FIGURES 55 – 62 ) (fine longitudinal scratched streaks/lines feinen geritzten Längsstricheln) from T3 covering complete tergite surface from 5 to 21 only seen when specimen dried off.

Sternites without paramedian sutures but with two shallow paramedian depressions from 9–19 and numerous short, narrow longitudinal grooves (scratches) from 11–20 ( Fig. 57 View FIGURES 55 – 62 ). Sternite of ultimate leg-bearing segment with sides strongly convergent posteriorly and posterior margin concave ( Fig. 58 View FIGURES 55 – 62 ). Coxopleural process very short, with three apical and one lateral spine, the pore field widening abruptly in its anterior half ( Fig. 58 View FIGURES 55 – 62 ).

Legs 1–12 or 13 (1–4) with a tibial spur (two tarsal spurs on 1–18). Ultimate legs missing (prefemur with 9–13 spines, 4–6 ventral, 3 medial, 5 dorsomedial, no corner spine).

Description of ZSM specimen. Antennae with 22+19[d] articles, the basal 2.45 glabrous. Second maxillary pretarsus with accessory spines but lacking a spur on article 2. Forcipular coxosternal tooth-plates with 8+6 low teeth. The decision as to what does and does not count as a tooth is subjective. Trochanteroprefemoral process with two low medial denticles.

Sternite of ultimate leg-bearing segment trapezoidal, the posterior margin very slightly concave. Coxopleural process very short, with four apical spines, ( Fig. 59 View FIGURES 55 – 62 ) or three apical and one lateral spine ( Fig. 60 View FIGURES 55 – 62 ).

Ultimate leg prefemora with 8 (in rows of 4, 3 and 1) and 13 spines ( Figs 61, 62 View FIGURES 55 – 62 ) the spine position uncertain in this cleared material.

Remarks. Otostigmus striolatus closely resembles O. multidens . However, Verhoeff (1937) stated that the fine longitudinal “as if scratched with a fine needle” streaks on the tergites and sternites differentiated this species from all others. Otostigmus multidens is widespread in South-East Asia and might well be expected to occur in Peninsular Malaysia but Verhoeff’s paper is the only publication on the centipede fauna of that region. Verhoeff’s description of O. striolatus is of the Munich specimen most of the trunk of which is missing.

ZMB

Museum für Naturkunde Berlin (Zoological Collections)

ZSM

Bavarian State Collection of Zoology

Kingdom

Animalia

Phylum

Arthropoda

Class

Chilopoda

Order

Scolopendromorpha

Family

Scolopendridae

Genus

Otostigmus

Loc

Otostigmus striolatus Verhoeff, 1937

Lewis, John G. E. 2014
2014
Loc

O. striolatus:

Verhoeff 1942
1942
Loc

O. (Otostigmus) striolatus

Verhoeff 1937
1937
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